<!DOCTYPE html>
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<html class="no-js">
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<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <title>自定义指令</title>
  <meta name="description" content="">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="../style.css">
</head>

<body>
  <!--[if lt IE 7]>
            <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
        <![endif]-->

  <div id="app">
    <div class="component" v-test:msg.a.b="message"></div>
  </div>


  <script src='https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js'></script>
  <script src="" async defer></script>

  <script>
    Vue.directive('test', {
      bind: function (el, binding, vnode) {
        var keys = []
        for (var i in vnode) {
          keys.push(i)
        }
        el.innerHTML =
          'name: ' + binding.name + '<br>' +
          'value: ' + binding.value + '<br>' +
          'expression: ' + binding.expression + '<br>' +
          'argument: ' + binding.arg + '<br>' +
          'modifiers: ' + JSON.stringify(binding.modifiers) + '<br>' +
          'vnode keys: ' + keys.join(', ')
      }
    })

    var app = new Vue({
      el: '#app',
      data: {
        message: 'some text'
      }
    })
  </script>

</body>

</html>